CN115066365A - Steering angle sensing device - Google Patents

Steering angle sensing device Download PDF

Info

Publication number
CN115066365A
CN115066365A CN202180013573.6A CN202180013573A CN115066365A CN 115066365 A CN115066365 A CN 115066365A CN 202180013573 A CN202180013573 A CN 202180013573A CN 115066365 A CN115066365 A CN 115066365A
Authority
CN
China
Prior art keywords
magnet
steering angle
sensing device
angle sensing
pinion shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202180013573.6A
Other languages
Chinese (zh)
Inventor
金真宦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HL Mando Corp
Original Assignee
Mando Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mando Corp filed Critical Mando Corp
Publication of CN115066365A publication Critical patent/CN115066365A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D15/00—Steering not otherwise provided for
    • B62D15/02—Steering position indicators ; Steering position determination; Steering aids
    • B62D15/021—Determination of steering angle
    • B62D15/0225—Determination of steering angle by measuring on a steering gear element, e.g. on a rack bar
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
    • B62D5/0421—Electric motor acting on or near steering gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D3/00—Steering gears
    • B62D3/02—Steering gears mechanical
    • B62D3/12—Steering gears mechanical of rack-and-pinion type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D6/00—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
    • B62D6/08—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits responsive only to driver input torque
    • B62D6/10—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits responsive only to driver input torque characterised by means for sensing or determining torque
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/30—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D15/00—Steering not otherwise provided for
    • B62D15/02—Steering position indicators ; Steering position determination; Steering aids
    • B62D15/021—Determination of steering angle
    • B62D15/0235—Determination of steering angle by measuring or deriving directly at the electric power steering motor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/142—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
    • G01D5/145—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices influenced by the relative movement between the Hall device and magnetic fields

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

Disclosed is a steering angle sensing device. According to one aspect of the present invention, a steering angle sensing device includes: a pinion shaft coupled to a rack cover provided with a rack bar, formed with a pinion gear to which a rack is engaged; a magnet disposed at one end of the pinion shaft and rotating together with the pinion shaft; a Printed Circuit Board (PCB) including a magnetic sensor disposed at a predetermined interval from the magnet, for sensing a rotation angle of a steering wheel connected to the pinion shaft; and a connector connected to the printed circuit board and transmitting a sensing value detected by the magnetic sensor to the control unit.

Description

Steering angle sensing device
Technical Field
The present invention relates to a steering angle sensing device, and more particularly, to a steering angle sensing device that senses a rotation angle of a steering wheel of a vehicle.
Background
In general, a steering device inevitably applied to an automobile is a device that switches the path and the traveling direction of the automobile in accordance with the request of a driver. In addition, as a means for reducing the Steering force of a Steering wheel (handle) and securing the safety of a Steering state in a vehicle, a Power-assisted Steering System has been used, and a Hydraulic Power Steering System (HPS) using a Hydraulic pressure has been conventionally used as such a Power-assisted Steering System.
Such an electric power steering apparatus may include means for detecting a steering angle (steering angle). That is, for detecting the steering angle of the vehicle to assist the steering force. A device for detecting a steering angle is disclosed in laid-open patent No. 10-2018-0073970. The reference discloses a main gear, 2 pinions and 2 sensors, which are provided on a pinion shaft connected to a rack. Magnets are provided on the 2 pinions, and when the pinions are rotated while being engaged with the main gear, the sensors detect changes in the magnetic field and calculate the rotation angle of the steering wheel.
However, since such an electric power steering apparatus requires a pinion, a magnet, and a sensor, the manufacturing cost is increased, the structure is complicated, and the installation space is limited.
Disclosure of Invention
Technical subject matter
The steering angle sensing apparatus of the embodiment of the present invention can reduce manufacturing costs through a simple structure, and can also easily detect a steering angle.
Means for solving the technical problem
According to one aspect of the present invention, there is provided a steering angle sensing device, including: a pinion shaft coupled to a rack cover provided with a rack bar, formed with a pinion gear to which a rack is engaged; a magnet disposed at one end of the pinion shaft and rotating together with the pinion shaft; a Printed Circuit Board (PCB) including a magnetic sensor disposed at a predetermined interval from the magnet, for sensing a rotation angle of a steering wheel connected to the pinion shaft; and a connector connected to the printed circuit board to transmit a sensor value detected by the magnetic sensor to the control unit.
The magnet and the magnetic sensor are disposed coaxially with the central axis of the pinion shaft.
In addition, still include: and a magnet holder formed in a cylindrical shape with one side opened to receive and fix the magnet, and coupled to the pinion shaft.
The magnet holder includes a stopper projection formed to protrude from an inner circumferential surface, and the stopper projection is formed along the inner circumferential surface of the magnet holder at least at one location.
The stopper projection is formed to have a predetermined length from an inner bottom of the magnet frame, and the length of the stopper projection is longer than the thickness of the magnet.
The pinion shaft may include a coupling portion having a diameter smaller than a diameter of a body in which the pinion is formed at one end portion, and the coupling portion may be press-coupled through an open portion of the magnet holder and supported by the stopper protrusion, so that a tip of the coupling portion may be spaced apart from the magnet by a predetermined distance.
Further, a flat surface having a shape corresponding to the stopper projection is formed on the outer peripheral surface of the magnet and press-fitted and coupled to the magnet holder.
The magnet is fixed to the magnet holder by an adhesive.
The magnet is formed integrally with the magnet holder by insert molding.
Further, a sensor housing portion is provided on the lower side of the rack cover coaxially with the pinion shaft so as to be opened, and the steering angle sensing device further includes a plug coupled to close the opening of the sensor housing portion.
The connector is partially exposed and coupled to the control unit so as to penetrate the plug.
In addition, the method comprises the following steps: and a sealing part for preventing foreign matters from flowing into the connector and between the connector exposed from the plug and the plug.
Effects of the invention
The steering angle sensing apparatus according to an embodiment of the present invention can detect a steering angle with a simple structure without a conventional main gear, 2 sub-gears, a magnet, and a sensor, thereby reducing manufacturing costs.
Further, the present invention is applicable to a conventional electric power steering apparatus, and therefore, the present invention has a practical applicability and is configured to have a simple configuration, and thus, the installation space can be secured and the degree of freedom in design can be improved.
Drawings
Fig. 1 is a view schematically showing an electric power steering apparatus including a steering angle sensing device according to an embodiment of the present invention.
Fig. 2 is an exploded perspective view illustrating a steering angle sensing device of an embodiment of the present invention.
Fig. 3 is a partially combined perspective view of fig. 2.
Fig. 4 is a partially cut-away perspective view illustrating a magnet frame of the steering angle sensing apparatus according to the embodiment of the present invention.
Fig. 5 is a sectional view showing a state in which a magnet frame of the steering angle sensing device of the embodiment of the present invention is coupled with a pinion shaft.
Fig. 6 is a perspective view showing a state in which a steering angle sensing device of an embodiment of the present invention is incorporated to a rack housing.
Fig. 7 is a sectional view showing a state where the steering angle sensing device of the embodiment of the present invention is incorporated to a rack housing.
Fig. 8 is a sectional view showing a steering angle sensing device of an embodiment of the present invention.
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following examples are provided to fully convey the concept of the invention to those skilled in the art. The present invention is not limited to the embodiments disclosed herein, and may be embodied in other forms. In the drawings, for the purpose of clarifying the present invention, portions not related to the description are not shown, and the sizes of the constituent elements are somewhat enlarged to help understanding of the present invention.
Fig. 1 is a view schematically showing an electric power steering apparatus including a steering angle sensing device according to an embodiment of the present invention.
Referring to fig. 1, an electric power steering apparatus 1 includes: a steering wheel (handle: not shown) disposed in the driver seat; a steering shaft 11 connected to a steering wheel; a steering column 12 that fixes the steering shaft 11 to the vehicle body; an intermediate shaft 13 connected to the steering column 12, rotating together with the steering wheel, and including a pair of universal joints; a pinion shaft 110 connected to the intermediate shaft 13; and an auxiliary power mechanism 30 for supplying steering auxiliary power. The pinion shaft 110 is connected to a rack bar (see '21' in fig. 5) housed in the rack housing 20, and both ends of the rack bar 21 are connected to wheels of the automobile through tie rods 23 and knuckles 24. That is, the rack bar 21 moves left and right by the rotation of the pinion shaft 110, and thus the wheels rotate, and the vehicle can be steered.
The auxiliary power mechanism 30 includes: a control portion (ECU: electronic control device) that senses steering torque applied to a steering wheel by a driver and generates a control signal based on an electric signal transmitted from the sensed steering torque; a motor 31 that generates steering assist power based on a control signal transmitted from a control unit (ECU); and a gear part which transmits the auxiliary power generated from the motor 31 to the rack bar 21 through a transmission belt. A Motor Position Sensor (MPS) is provided to the auxiliary power mechanism 30 to detect the angle of the steering wheel together with the steering angle sensing device 100.
The configuration of the electric power steering apparatus 1 is known, and therefore, a detailed description thereof is omitted.
Fig. 2 is an exploded perspective view illustrating a steering angle sensing device of an embodiment of the present invention, fig. 3 is a partially combined perspective view of fig. 2, fig. 4 is a partially cut-away perspective view illustrating a magnet frame of the steering angle sensing device of the embodiment of the present invention, fig. 5 is a sectional view illustrating a state in which the magnet frame and a pinion shaft of the steering angle sensing device of the embodiment of the present invention are combined, fig. 6 is a perspective view illustrating a state in which the steering angle sensing device of the embodiment of the present invention is combined to a rack housing, fig. 7 is a sectional view illustrating a state in which the steering angle sensing device of the embodiment of the present invention is combined to the rack housing, and fig. 8 is a sectional view illustrating the steering angle sensing device of the embodiment of the present invention.
Referring to fig. 2 to 8, a steering angle sensing apparatus 100 of one aspect of the present invention includes: a pinion shaft 110; a magnet holder 120 coupled to one end of the pinion shaft 110 and including a magnet 122; a printed circuit board 130 provided with a magnetic sensor 132; a connector 140 connected to the printed circuit board 130 to transmit a sensing value to a control unit (ECU); and a plug 150 coupled to the connector 140.
The pinion shaft 110 has a predetermined length, rotates together with the steering wheel, and has a pinion gear 111 formed on an outer circumferential surface thereof. The other end of the pinion shaft 110 is connected to an intermediate shaft (see '13' of fig. 1), and the one end thereof is provided with a coupling portion 112, and the coupling portion 112 has a diameter smaller than that of a main body on which the pinion 111 is formed. The coupling portion 112 is coupled to a magnet holder 120 described later. The structure of the coupling portion 112 to the magnet holder 120 will be described again below. Such a pinion shaft 110 is coupled to the rack housing 20 in such a manner as to mesh with the rack 22 of the rack bar 21.
On the other hand, the unexplained symbol '115' is a bearing rotatably supporting the pinion shaft 110 to the rack housing 20 so that the pinion shaft 110 can stably rotate.
The unexplained symbol '40' is a rack bar supporting device, which elastically supports the rack bar 21 on the pinion shaft 110 side and keeps the rack 22 and the pinion 111 in a tightly meshed state.
The magnet holder 120 is coupled to the coupling portion 112 and includes a magnet 122 therein. The magnet holder 120 has a cylindrical shape with one side open to receive the magnet 122. The magnet holder 120 includes a stopper protrusion 124 formed to protrude from an inner circumferential surface. At least one stopper protrusion 124 is formed along the inner circumferential surface of the magnet frame 120. More specifically, the stopper protrusion 124 is formed to have a predetermined length from the inner bottom of the magnet frame 120, and has a flat surface.
The magnet 122 is fixed to the bottom of the inside of the magnet holder 120 through such an open portion of the magnet holder 120. As shown in the drawing, as the stopper protrusion 124 is formed on the magnet holder 120, a flat surface 122a having a shape corresponding to the flat surface of the stopper protrusion 124 is formed on the outer peripheral surface of the magnet 122. In contrast, the magnet 122 is press-fitted and coupled to the magnet holder 120 after the flat surface 122a of the magnet 122 is disposed to correspond to the stopper protrusion 124. This is to prevent the magnet 122 from idling in the magnet holder 120 when the magnet holder 120 is coupled to the coupling portion 112 of the pinion shaft 110 and rotated together. On the other hand, although the description has been given of the case where the magnet 122 is supported by the stopper protrusion 124 with the flat surface 122a formed thereon, the present invention is not limited thereto, and any assembling structure may be provided as long as the magnet 122 can be tightly fixed to the magnet holder 120. For example, the magnet 122 is fixed to the magnet frame 120 by an adhesive. In addition, the magnet holder 120 and the magnet 122 are integrally formed by insert molding.
On the other hand, the stopper protrusion 124 has a predetermined length in the longitudinal direction of the magnet holder 120, and in this case, the length l2 of the stopper protrusion 124 has a length longer than the thickness l1 of the magnet 122.
The coupling portion 112 is press-fitted and coupled through the open portion of the magnet holder 120 as described above. At this time, the end of the combining portion 112 is stopped by the stopping protrusion 124. That is, when the coupling portion 112 is press-fitted and coupled to the magnet holder 120, the coupling portion 122 is stopped by the stopper protrusion 124 and restricted from moving, and the tip of the coupling portion 112 is spaced apart from the magnet 122 by a predetermined distance. In contrast, the coupling portion 112 is prevented from being excessively press-fitted and coupled, thereby preventing the magnet 122 from being damaged.
On the other hand, although the case where the coupling portion 112 is coupled to the magnet holder 120 while being supported by the stopper protrusion 124 with a predetermined interval from the magnet 122 has been illustrated, the length of the coupling portion 112 may be coupled to the magnet holder 120 without contacting the magnet 122 coupled to the magnet holder 120.
The printed circuit board 130 includes a magnetic sensor 132 for sensing a rotation angle of the steering wheel. The printed circuit board 130 is disposed at a predetermined interval from the magnet holder 120. Specifically, various electric elements and circuit wiring are arranged on the printed circuit board 130, and the magnetic sensor 132 is provided on a surface facing the magnet 122. That is, the magnetic sensor 132 provided on the printed circuit board 130 is provided to face the magnet 122, and the magnet 122 and the magnetic sensor 132 are spaced apart from each other by a predetermined distance. Such a magnetic sensor 132 is located at a position facing the magnet 122 fixed to the magnet frame 120. The magnetic sensor 132 is, for example, an AMR (Anisotropic magnetoresistive) sensor, a GMR (Giant magnetoresistive) sensor, a hall sensor, or the like. The magnetic sensor 132 senses a change in the magnetic field of the magnet 122 generated by the rotation of the pinion shaft 110, and the printed circuit board 130 processes a sensing signal of the change in the magnetic field of the magnetic sensor 132.
On the other hand, the magnet 122 and the magnetic sensor 132 are disposed coaxially with the central axis of the pinion shaft 110.
The connector 140 is connected to the printed circuit board 130 and transmits a sensor value detected by the magnetic sensor 132 of the printed circuit board 130 to a control unit (ECU). The connector 140 is connected to the printed circuit board 130 by press fitting (press fit) via a connection terminal 143 or electrically connected by soldering. One end of the connector 140 is connected to the printed circuit board 130, and the other end is connected to an Electronic Control Unit (ECU) or a control unit (ECU) of the auxiliary power mechanism 30 via a separate socket or the like. In contrast, the sensing signal detected by the magnetic sensor 132 is transmitted to a control unit (ECU) via the connector 140, and the rotation angle of the steering wheel is calculated by another algorithm and controlled. Such a connector 140 is coupled to a plug 150 described later.
The plug 150 is coupled to the pinion shaft 110 disposed coaxially below the opening of the rack housing 20. The rack cover 20 is opened at a lower side thereof and includes a sensor housing portion for housing a connector 140 coupled to the printed circuit board 130. In this regard, the plug 150 coupled to the connector 140 closes and couples the lower opening of the rack housing 20. When press-fitted into the lower opening of the rack housing 20, the plug 150 is press-fitted and coupled with the magnetic sensor 132 and the magnet holder 120 at a predetermined interval. This is to smoothly sense the magnetic field change of the magnet 122 by the magnetic sensor 132. In addition, the plug 150 is formed by being screw-coupled to the rack housing 20. That is, the plug 150 is screw-coupled to the rack housing 20, and adjusts the position of the magnetic sensor 132 according to the degree of screw coupling, thereby adjusting the interval between the magnetic sensor 132 and the magnet frame 120.
On the other hand, a part of the connector 140 is exposed, and is connected to and coupled to a control unit (ECU) through the plug 150. As shown in the drawing, the connector 140 is fixed to the plug 150, and the lower portion is exposed from the plug 150 and connected to an Electronic Control Unit (ECU) provided in the auxiliary power unit 30. In contrast, as described above, the rotation angle of the pinion shaft 110 detected by the magnetic sensor 132 on one side of the present invention and the rotation speed of the motor detected by the MPS provided in the auxiliary power unit 30 are calculated by a separate algorithm, thereby detecting the angle of the steering wheel with high accuracy.
Further, a seal (not shown) is provided to prevent foreign matter from flowing into the connector 140 and between the connector 140 and the plug 150 as the connector 140 is exposed from the plug 150. The seal portion is made of a sealing member, silicon, or the like, and the gap between the connector and the plug is closed by the seal portion, thereby preventing the inflow of foreign matter.
The steering angle sensing device 100 as described above can be used by separately manufacturing and using only the magnet holder 120 using the conventional pinion shaft 110 and the magnet 112, the printed circuit board 130, the connector 140, and the plug 150, and thus the assembly of the electric power steering device 1 is simplified, the number of components is reduced, and the manufacturing cost can be reduced.
As described above, the present invention has been described with reference to the embodiments and the drawings, but the present invention is not limited thereto, and it is obvious to those skilled in the art that various modifications and variations can be made within the technical spirit of the present invention and the equivalent scope of the claims described below.

Claims (12)

1. A steering angle sensing device, comprising:
a pinion shaft coupled to a rack housing provided with a rack bar and formed with a pinion gear to which a rack is engaged;
a magnet disposed at one end of the pinion shaft and rotating together with the pinion shaft;
a Printed Circuit Board (PCB) including a magnetic sensor disposed at a predetermined interval from the magnet, the magnetic sensor sensing a rotation angle of a steering wheel connected to the pinion shaft; and
and a connector connected to the printed circuit board and configured to transmit a sensor value measured by the magnetic sensor to the control unit.
2. The steering angle sensing device according to claim 1,
the magnet and the magnetic sensor are disposed coaxially with the central axis of the pinion shaft.
3. The steering angle sensing device according to claim 1, further comprising:
and a magnet holder formed in a cylindrical shape with one side opened to receive and fix the magnet, and coupled to the pinion shaft.
4. The steering angle sensing device according to claim 3,
the magnet frame is provided with a stop projection formed on the inner circumferential surface,
the stopper protrusion is formed at least one or more along an inner circumferential surface of the magnet frame.
5. The steering angle sensing device according to claim 3,
the stopper protrusion is formed to have a predetermined length from an inner bottom of the magnet frame,
the length of the stopper projection is longer than the thickness of the magnet.
6. The steering angle sensing device according to claim 5,
the pinion shaft includes a coupling portion at one end portion, the coupling portion having a diameter smaller than a diameter of a main body in which the pinion gear is formed,
the coupling portion is configured to be press-fitted and coupled through the open portion of the magnet frame and supported by the stopper projection, so that the tip of the coupling portion is spaced apart from the magnet by a predetermined distance.
7. The steering angle sensing device according to claim 4,
a flat surface having a shape corresponding to the stopper protrusion is formed on the outer circumferential surface of the magnet, and the magnet is press-fitted and coupled to the magnet holder.
8. The steering angle sensing device according to claim 3,
the magnet is fixed to the magnet holder by an adhesive.
9. The steering angle sensing device according to claim 3,
the magnet is integrally formed with the magnet holder by insert molding.
10. The steering angle sensing device according to claim 1,
a sensor housing part provided coaxially with the pinion shaft and having an opening at a lower side of the rack housing,
the steering angle sensing device further includes a plug coupled to close the opening of the sensor housing.
11. The steering angle sensing device according to claim 10,
the connector is partially exposed and coupled to the control unit so as to penetrate the plug.
12. The steering angle sensing device of claim 11, comprising:
and a sealing part for preventing foreign matters from flowing into the connector and between the connector exposed from the plug and the plug.
CN202180013573.6A 2020-02-13 2021-01-12 Steering angle sensing device Pending CN115066365A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR1020200017722A KR20210103231A (en) 2020-02-13 2020-02-13 Apparatus for detecting steering angle
KR10-2020-0017722 2020-02-13
PCT/KR2021/000408 WO2021162248A1 (en) 2020-02-13 2021-01-12 Steering angle sensing device

Publications (1)

Publication Number Publication Date
CN115066365A true CN115066365A (en) 2022-09-16

Family

ID=77291746

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202180013573.6A Pending CN115066365A (en) 2020-02-13 2021-01-12 Steering angle sensing device

Country Status (5)

Country Link
US (1) US20240109586A1 (en)
KR (1) KR20210103231A (en)
CN (1) CN115066365A (en)
DE (1) DE112021001001T5 (en)
WO (1) WO2021162248A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022209105A1 (en) * 2022-09-01 2024-03-07 Volkswagen Aktiengesellschaft Sensor device for a wheel actuator of a steer-by-wire system of a vehicle, wheel actuator, steer-by-wire system, vehicle and method for determining a position of a handlebar of a vehicle

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07464B2 (en) * 1985-01-25 1995-01-11 日本精工株式会社 Rack and pinion steering torque detection device
JP2002257648A (en) * 2001-02-28 2002-09-11 Honda Motor Co Ltd Torque detecting device and electric power steering device using the same
DE10126423A1 (en) * 2001-05-31 2002-12-05 Zf Lenksysteme Gmbh Steering for motor vehicles
JP2005075274A (en) * 2003-09-03 2005-03-24 Honda Motor Co Ltd Electric power steering device
KR101758916B1 (en) * 2010-12-21 2017-07-17 엘지이노텍 주식회사 EPS Motor having steering angle sensor
KR102671202B1 (en) 2016-12-23 2024-05-31 엘지이노텍 주식회사 Apparatus for sensing and apparatus for steering

Also Published As

Publication number Publication date
US20240109586A1 (en) 2024-04-04
KR20210103231A (en) 2021-08-23
DE112021001001T5 (en) 2023-01-19
WO2021162248A1 (en) 2021-08-19

Similar Documents

Publication Publication Date Title
US8448742B2 (en) Electric power steering system
KR101128608B1 (en) The Torque Angle Sensor and The Electronic Power Steering Apparatus Having The Same
US10794781B2 (en) Sensor device
KR101681778B1 (en) Torque angle sensor
KR101452559B1 (en) Pinion Sensor Assembly and Pinion Sensor Cover Assembly and Electric Power Steering Apparatus having The Same
EP3671157B1 (en) Torque sensor and steering device
KR20150075878A (en) Torque angle sensor
CN115066365A (en) Steering angle sensing device
JP5168546B2 (en) Vehicle steering system
JP3818801B2 (en) Electric steering device
US6655493B2 (en) Steering column with non-compliant torque sensor
KR101208178B1 (en) Electronic power steering apparatus having torque sensor
EP1905672B1 (en) Electric power steering system
CN110723208A (en) Steering assist device
US11708108B2 (en) Steering system for vehicle
KR101189573B1 (en) Automobile steering roll connector united with steering angle sensor
KR100397711B1 (en) Torque senser for car
KR20230063050A (en) Steering device for vehicle
JP3832574B2 (en) Electric power steering device
KR102002609B1 (en) Rear wheel steering system for use in vehicle
KR100568138B1 (en) Device for sensing a steering angle for vehicles
JP6353882B2 (en) Electric power steering apparatus and manufacturing method thereof
KR20220126137A (en) Steering device for vehicle
KR20170050071A (en) Torque Sensor and Electronic Power Steering System having the same
JP2024041179A (en) torque sensor

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
CB02 Change of applicant information
CB02 Change of applicant information

Address after: Gyeonggi Do, South Korea

Applicant after: Hanna Wandu Co.,Ltd.

Address before: Gyeonggi Do, South Korea

Applicant before: MANDO Corp.

SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination